This is a Giant Math Enrichment Pack of Mixed Operations Logic Puzzles for 3rd and 4th Grades.The Following are Included in this Product:1) 20 Easy Puzzles: 3 Lines of Logic, Addition and Subtraction, Numbers 1-999 2) 20 Medium Puzzles: 3 Lines of Logic, Addition and Subtraction, Numbers .01-999.99 3) 20 Hard Puzzles: 4 Lines of Logic, Addition, Subtraction and Multiplication, Numbers .01-999.99 4) 20 Champion Puzzles: 4 Lines of Difficult Logic, Addition, Subtraction and Multiplication, Numbers